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| author | Aditya Kali <adityakali@google.com> | 2016-01-29 02:54:04 -0600 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-02-16 13:04:58 -0500 |
| commit | 9f6df573a4041f896cbf51f1b3743494196620a7 (patch) | |
| tree | 4ff0db9f1e815317630b24fdd32154eb72187d9e /include/linux/kernfs.h | |
| parent | 223ffb29f9723a4b485cacf6dc7e6d639fffc322 (diff) | |
| download | op-kernel-dev-9f6df573a4041f896cbf51f1b3743494196620a7.zip op-kernel-dev-9f6df573a4041f896cbf51f1b3743494196620a7.tar.gz | |
kernfs: Add API to generate relative kernfs path
The new function kernfs_path_from_node() generates and returns kernfs
path of a given kernfs_node relative to a given parent kernfs_node.
Signed-off-by: Aditya Kali <adityakali@google.com>
Signed-off-by: Serge E. Hallyn <serge.hallyn@canonical.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/kernfs.h')
| -rw-r--r-- | include/linux/kernfs.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index af51df3..716bfde 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -267,8 +267,9 @@ static inline bool kernfs_ns_enabled(struct kernfs_node *kn) int kernfs_name(struct kernfs_node *kn, char *buf, size_t buflen); size_t kernfs_path_len(struct kernfs_node *kn); -char * __must_check kernfs_path(struct kernfs_node *kn, char *buf, - size_t buflen); +int kernfs_path_from_node(struct kernfs_node *root_kn, struct kernfs_node *kn, + char *buf, size_t buflen); +char *kernfs_path(struct kernfs_node *kn, char *buf, size_t buflen); void pr_cont_kernfs_name(struct kernfs_node *kn); void pr_cont_kernfs_path(struct kernfs_node *kn); struct kernfs_node *kernfs_get_parent(struct kernfs_node *kn); @@ -338,8 +339,8 @@ static inline int kernfs_name(struct kernfs_node *kn, char *buf, size_t buflen) static inline size_t kernfs_path_len(struct kernfs_node *kn) { return 0; } -static inline char * __must_check kernfs_path(struct kernfs_node *kn, char *buf, - size_t buflen) +static inline char *kernfs_path(struct kernfs_node *kn, char *buf, + size_t buflen) { return NULL; } static inline void pr_cont_kernfs_name(struct kernfs_node *kn) { } |
